...n at Richmond) from West Point, on the York river, along the lower Rappahannock; at certain points on the Potomac, and on the upper Rappahannock at the various fords twenty-five or thirty miles above Fredericksburg , leaving at headquarters, besides the sick and such as had no arms, but few efficient men. The evening before Dahlgren's raid Captain Simpson's company, from Norfolk, unexpectedly joined us, but ...